Norovirus: a possible cause of pneumatosis intestinalis

Mi Jin Kim1, Yae-Jean Kim, Ji Hyuk Lee

  • 1Department of Pediatrics, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, South Korea.

Insights

Norovirus infection may cause pneumatosis intestinalis (PI) in children, particularly those who are immunocompromised. This study identified norovirus in four pediatric patients with PI, suggesting a potential link between this viral infection and the condition.

Area of Science:

  • Pediatric Gastroenterology
  • Infectious Diseases
  • Virology

Background:

  • Pneumatosis intestinalis (PI) in children is often linked to conditions such as immunosuppression, trauma, and gastrointestinal infections.
  • Previous studies have not reported a connection between norovirus infection and PI.

Purpose of the Study:

  • To investigate the potential association between norovirus infection and the development of pneumatosis intestinalis in pediatric patients.
  • To identify pathogens in children diagnosed with PI.

Main Methods:

  • A retrospective review of pediatric patients (older than 30 days) with PI from March 2005 to April 2009.
  • Utilized reverse-transcriptase polymerase chain reaction (RT-PCR) for viral stool examinations since December 2008.

Main Results:

  • Twenty-seven pediatric patients with PI were identified; 17 (63.0%) were immunocompromised.
  • Norovirus (genotype GII-4) was detected in 4 out of 5 immunocompromised patients tested since December 2008, predominantly during the cold season.
  • Twenty-four patients (88.9%) survived; no deaths were associated with norovirus or rotavirus infections.

Conclusions:

  • Norovirus infection is a potential contributing factor to pneumatosis intestinalis in immunocompromised children.
  • Further research is warranted to confirm the causal relationship between norovirus and PI.
Abstract

Related Concept Videos

Pneumonia I: Introduction01:30

Pneumonia I: Introduction

Pneumonia is an acute respiratory infection that targets the lungs, specifically the alveoli. These tiny air sacs, essential for oxygen exchange, become engorged with pus and fluid, severely hindering breathing, decreasing oxygen absorption, and causing significant pain and discomfort during respiration.
Risk Factors
Various factors influence the likelihood of developing pneumonia. Age plays a crucial role, with infants, children under two, and individuals over 65 at increased risk due to their...
Pneumonia I: Introduction01:29

Pneumonia I: Introduction

Pneumonia is an infection of the lower respiratory tract that leads to inflammation of the lung parenchyma, often resulting in the accumulation of inflammatory exudate in the alveoli and airways. Unlike the watery, low-protein fluid exudate in pulmonary edema, the exudate in this case is a thick fluid rich in immune cells, proteins, and debris produced during infection and inflammation.This impairs gas exchange and can lead to consolidation of lung tissue. The infection may be caused by a...
Intestinal Obstruction II: Pathophysiology01:07

Intestinal Obstruction II: Pathophysiology

Intestinal obstruction triggers a series of physiological responses, starting with gas and fluid accumulation in the bowel segment proximal to the obstruction, leading to distension. This distended intestine compresses the diaphragm, hindering lung expansion and potentially leading to reduced respiratory effort, atelectasis, and pneumonia.To overcome the blockage, the gut intensifies contractions, causing colicky abdominal pain, nausea, and vomiting, which reduces fluid and food intake and...
Pneumothorax II: Pathophysiology01:08

Pneumothorax II: Pathophysiology

Pneumothorax means the presence of air in the pleural space — the thin potential gap between the visceral and parietal pleura. This condition disrupts the normal pressure balance that keeps the lungs inflated, leading to partial or complete collapse of the affected lung.Normal physiologyUnder normal conditions, the pleural space maintains a slightly negative intrapleural pressure, which keeps the lungs expanded against the chest wall. This negative pressure creates a delicate balance between...
Pyloric Obstruction01:11

Pyloric Obstruction

Pyloric obstruction, also referred to as gastric outlet obstruction, is a condition characterized by narrowing or blockage at the pylorus—the muscular valve regulating the flow of stomach contents into the duodenum. When this passage becomes impaired, the stomach cannot effectively empty its contents into the small intestine. This disruption leads to a range of gastrointestinal symptoms, including early satiety, bloating, epigastric pain, postprandial nausea, persistent vomiting, and...
Pneumonia II: Pathophysiology01:29

Pneumonia II: Pathophysiology

The pathophysiology of pneumonia involves the following steps: